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Ruthenium spark plugs

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Old 02-20-2021, 10:14 PM
  #21  
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Originally Posted by Oldblue
Yeah, plugs bond nicely to aluminum heads, left in that long .
I use anti-seize anytime i put plugs in aluminum heads.... same with the HHR
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Old 02-21-2021, 06:33 AM
  #22  
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Me too.
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Old 02-21-2021, 11:35 AM
  #23  
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Originally Posted by RJ_RS_SS_350
Yes, and the ACDelco are supposed to last 100,000 miles. If Ruthenium really lasts significantly longer than that, they would likely be fused to the head.
Original Iridium plugs we in my Ford 5.4L w/aluminum heads for 245k miles.
No problems getting them out. They just had a 80 thou gap.
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Old 02-21-2021, 01:42 PM
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"Ruthenium spark plugs"

Why do I keep reading this as "Rustoleum spark plugs"

Need better glasses, I guess.
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